Like this. Open in center for future homework nook. Shelves across top, with opening for TV. Maybe higher cabinets at the bottom too, and pretty countertop above. Space behind to bring cords from tv down to the shelves.

Relaxed Family Room | built in for TV

how to build shelves in a wall - Google Search

how to build shelves in a wall - Google Search

This white built-in entertainment center makes this room feel grand and inviting. Plus we love all of the storage and shelving to show off accessories.